<?PHP
function getfirstchar($s0){   
	$fchar = ord($s0{0});
	if($fchar >= ord("A") and $fchar <= ord("z") )return strtoupper($s0{0});
	$s1 = iconv("UTF-8","gb2312", $s0);
	$s2 = iconv("gb2312","UTF-8", $s1);
	if($s2 == $s0){$s = $s1;}else{$s = $s0;}
	$asc = ord($s{0}) * 256 + ord($s{1}) - 65536;
if($asc>=-20319 and $asc<=-20284)return "a";   
 if($asc>=-20283 and $asc<=-19776)return "b";   
 if($asc>=-19775 and $asc<=-19219)return "c";   
 if($asc>=-19218 and $asc<=-18711)return "d";   
 if($asc>=-18710 and $asc<=-18527)return "e";    
 if($asc>=-18526 and $asc<=-18240)return "f";    
 if($asc>=-18239 and $asc<=-17923)return "g";    
 if($asc>=-17922 and $asc<=-17418)return "h";                 
if($asc>=-17417 and $asc<=-16475)return "j"; 
if($asc>=-16474 and $asc<=-16213)return "k"; 
if($asc>=-16212 and $asc<=-15641)return "l"; 
if($asc>=-15640 and $asc<=-15166)return "m"; 
if($asc>=-15165 and $asc<=-14923)return "n"; 
if($asc>=-14922 and $asc<=-14915)return "o"; 
if($asc>=-14914 and $asc<=-14631)return "p"; 
if($asc>=-14630 and $asc<=-14150)return "q"; 
if($asc>=-14149 and $asc<=-14091)return "r"; 
if($asc>=-14090 and $asc<=-13319)return "s"; 
if($asc>=-13318 and $asc<=-12839)return "t"; 
if($asc>=-12838 and $asc<=-12557)return "w"; 
if($asc>=-12556 and $asc<=-11848)return "x"; 
if($asc>=-11847 and $asc<=-11056)return "y"; 
if($asc>=-11055 and $asc<=-10247)return "z"; 

	return null;
}
function pinyin1($zh){
	$ret = "";
    $s1 = iconv("UTF-8","gb2312", $zh);
    $s2 = iconv("gb2312","UTF-8", $s1);
    if($s2 == $zh){$zh = $s1;}
	for($i = 0; $i < strlen($zh); $i++){
		$s1 = substr($zh,$i,1);
		$p = ord($s1);
		if($p > 160){
			$s2 = substr($zh,$i++,2);
			$ret .= getfirstchar($s2);
		}else{
			$ret .= $s1;
		}
	}
	return $ret;
}
echo pinyin1('zxcdfghjkAA河哦这是中文字符串');


?>